Solved the problem … 

It turns out if you select a line width beyond the ‘mid point’ the line jumps won’t be visible as they don’t scale well with the line width selected 

It is not working for me even with minimizing the line width, any idea how to fix it ?

While this will not solve everyone’s issue, it’s worth noting that line jumps do not work with curved connection lines:

https://help.miro.com/hc/en-us/articles/360017730733#01H7YSSA7N8RNRCC1D5K60E3PQ

Hey guys, it didn’t work for me even when the thickness of the line is below the midpoint and in the straight line. 

Help would be appreciated!

Hi @xnivaxhzne,

Thanks for jumping in on this thread!

In my replication, the line jump feature worked for me even when the thickness is set below the midpoint. 

Please note that Line jumps work only with straight and orthogonal lines.

 In my screenshot, the line that “jumps” is a straight one and the curvy line is under it. In your screenshot, you should be able to make the line jump work on your end as long as the line you are setting up to “jump” is the straight one.

If this issue still persists, could you please confirm if this is happening in other boards as well or in a new board in an incognito mode? Could you also check if the line jump appears if you zoom in?

Please let me know how it goes.

@Eca  Today I tried, and it worked for me. Not sure whether it's an edge case. I will post here if I face it again.

@xnivaxhzne - I am back on a desktop and was able to test a theory. Because line jump do not work on curved lines, the curved line needs to have a lower layer index value, i.e., it has to be behind the straight or angular/orthogonal line that has the jump enabled.

In this GIF, you can see that the line jump is visible on the straight line when the strait line is “on top of” the curved line, but then goes away when I bring the curved line in front of the straight line:

@Robert Johnson It seems this is why I didn’t see the line jump earlier and saw yesterday. So it’s an intentional design. 

@Eca  Maybe having the line jump always would be useful because, unless I am conscious about the front/back thing, I assume that it doesn’t work and I believe others do the same.